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United States Patent | 6,134,481 |
Warren | October 17, 2000 |
A method of effecting communication in a computer system between off-chip circuitry and on-chip circuitry is disclosed, according to a message protocol in which four messages can be formulated: a data write request; a data read request; a response message; and a diagnostic message.
Inventors: | Warren; Robert (Thornbury, GB) |
Assignee: | SGS-Thomson Microelectronics Limited (Almondsbury Bristol, GB) |
Appl. No.: | 959697 |
Filed: | October 29, 1997 |
Oct 31, 1996[GB] | 9622683 |
Current U.S. Class: | 700/28; 700/32; 700/78; 700/81 |
Intern'l Class: | G06F 011/34 |
Field of Search: | 700/1,2,4,28,32,78,79,81,244 |
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6041378 | Mar., 2000 | Warren | 710/127. |
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